gistfile1.coffee

classes = 
  aClass: class AClass
    constructor: ->
      alert("A class")

# Should say "A class"
new classes.aClass

class bClass extends classes.aClass
  constructor: ->
    alert("B class")

cClass = class classes.aClass extends bClass
  constructor: ->
    super
    alert("C class")

# Should say "B class" then "C class"
new cClass

# Should say "A class", but doesn't cause we overwrote it
new classes.aClass